Jack support



Aug. 1, 1 950 COOPER 2,517,286

JACK SUPPORT Filed July 18, 1946 Lewis f Cooper -|NVENTOR,

F|G.3 AT ORNEY Patented Aug. 1, 1950 UNITED STATES PATENT OFFICE I i 2,517,213 r JACK SUPPORT LewisF. Cooper, Shawnee, Okla. Application July 18, 1946, Serial No. 684,434

-8 Claims. 1

My invention relates to a support for liftingjacks and more particularly to a support useable in bridge and trestle repair work.

In repairing bridges supported upon driven pi1ing,.it is difficult to replace piling caps because of the fact that there is no handy way of getting a purchase beneath thestringers or tie-sills, so that they may be jacked up or raised off the piling caps. 1

It is common practice to chain the lifting-jacks to the side of the piling, butthis practice is impractical due to the difliculty in keeping the jacks in vertical position during the sill raisingoperation. Loads are often dropped due to jack slippage and chain breakage.

It is the prime object of the present invention to provide a jack support capable of easy and positively rigid attachment to the side of a bridge piling.

Another object is to provide, as an article of manufacture, a heavy duty jack support which is simple to install and safe to operate.

A further object is to provide a jack support for the purposes set forth which is comparatively cheap to manufacture.

Other objects will be apparent from the following description when taken in conjunction with the accompanying single sheet of drawings, wherein:

Figure l is a perspective view showing two of the articles operatively installed beneath bridge sills, and showing a piling cap which has been removed from its former dotted line position;

Figure 2 is a fragmentary side elevational view of one of the devices operatively installed; and,

Figure 3 is a perspective view of one ticles of invention. o i y Like characters of reference designate like parts in those figures of the drawings in which they occur.

In the drawings:

The reference numerals I and 2 indicate the upper end portions of two spaced bridge supporting piles. A piling cap 3 spans the space between and rests upon the two piles, and longitudinally extending sills or stringers" 4 extend longitudinally of the bridge and support rail road ties 5 upon their upper surfaces in an obvious manner. y

The device of'the presentinvention is designed to be removably anchored to the side of one of the piles, so that a lifting jack may be supported thereby to lift one of the sills 4 in order that the piling cap 3 may be removed for replacement.

The i e a lewcfi the i enti n. per 'se,

2 r v V is indicated as a Whole by the character A, and consists of an elongated flat sided heavy metal vertically disposed plate or body [0, being wider at its upper end portion II than at its lower end portion l2, and having a straight vertical edge l3 and a downwardly and inwardly sloping edge l4 lying opposite thereto. The upper end of the body H] has a fiat horizontal heavy metal shelf l5, weld-integrated thereto, and lying perpendicular to the body H). The shelf I5 has a substantially straight front edge l6, and a concavely arcuate rear edge IL The are of the edge I! is preferably struck on a radius substantially equal to or slightly less than the radius of the exterior surface of one of the if copiles, and the middle portion of the arc incident tothe edge l3 of the body I I].

r The lower narrow end of the body ID has weldintegrated thereto a perpendicular or horizontal transverse foot or shoe I8 having a concavely arcuate edge if! struck on a radius similar to the radius of the edge I! ofthe shelf I5 The to the middle of the edge I 9 is also coincident vertical edge I3 of the body Ill.

provided, intermediateits ends, with an arcuate notch 20 and the edge It is thickened slightly adjacent the notch. i

In putting the device to use, it is placed against ',the exterior surface of one of the piles, with the vertical edge l3 and the two concave edges [1 i and I 9 contacting the same, and a chain 2| is to'bind the device against material vertical movement with relation to the pile. A conventional lifting jack 22 is then placed upon the shelf l5 and beneath one of the sills 4, andwhen operated, the jack may lift the sill off the piling of the piles, so that a; considerable span or extentof the sills will be raised.

lateral displacement of the device with relation to the pile.

Obviously the device is susceptible of some changes in construction and configuration without defeating its practicability, and I therefore do not wish to beconfined only to the preferred :1 embodimentshown and'described herein, further" The front sloping edge Id of the body III is can 3tso Lthatit may be removed for replacement.

Of course, several different ones of thedevices will usually be similarly installed upon several from those shown, provided they positively engage the face of the pile and prevent 1atera1 or rotative displacement of the device when it is chained to the pile. To this end, the concave edges I! and I 9 might well be replaced with V-shaped notches.

I claim:

1. As an article of manufacture, a jack support including: an elongated metal plate adapted to have oneedge disposed vertically in contact'with the'side face of a pile; a horizontal shelf upon,

the ,upper end of the plate and integral therewith, said'shelfhaving a concave edge substan= tially complemental with the piling face, and with its central portion "complemental to the adjacent vertical edge of the plate; and a flattened loop receiving surface formed on'the outer verticaledge ofrthe plateintermediate the ends thereof.

. 2.-As an article of manufacture, a jack support including: an elongated metal plate adapted to have one edge :disposed vertically in contact with the side face of a pile; a horizontal shelf upon .the. upper end of the plate and integral therewith, :saidishelf having a concave edge substantially complemental with the piling face,.and withdts central-portion complemental to the adjaoent vertical 'edge of the plate; a horizontally disposed shoe integral with the lower end of. said plate, said-shoe. having a concave edgeconcentric to and vertically aligned with .the first mentioned concave edge; and a flattened loop receiving surface formed on the outer vertical edge of the plate intermediate the ends thereof.

3.".As an article of manufacture, a jack supportcomposed of a :unitary metal structure including: an elongated plate; a shelf on the upper endvof the plate perpendicular thereto; and a foot on the' lower end of the plateparallel to the-shelf, said shelf and foot having vertically aligned concave edges with their central portions substantially complemental to one vertical edge of the plate. 4. Ajack supporting device embodying therein ashelf portion adapted to be horizontally disposed to serve as asupport for a jack, a body part extending from the-shelf portion and being perpendicularly-disposed with respect thereto, said body part having edge portions adapted to be disposed in alignment with the adjacent surface-portions of the upright member on which the device is to be mounted, the body portion being provided intermediate its ends with means for receiving and confining against slippage a member adapted toenc-ircle saidupright 'member and said body portion'for holding the device in operative position on the upright member. I

'5. A jack supporting device embodying therein a shelf portion adapted to be horizontally disposed to serve as asupportfor a lack, a body part extending from the shelf portion and being perpendicularly disposed with respect thereto, saidbody part having edge portions'adapted to be, disposed in alignment; with the adjacent sura *3! face portions of the upright member on which the device is to be mounted, the body portion being provided with a recess intermediate its ends for receiving and confining against slippage a member adapted to encircle said upright member and said body portion for holding the device in operative position on the upright member.

6. A jack supporting device embodying therein: a shelf portion adapted to be horizontally disposed toserve as a support for a'jaclg; and provided with an edge formed to engage "piling at a plurality of points around its periphery; a platelike body portion centrally and perpendicularly disposed beneath the shelf portion, said body portion having edges adapted to be disposed in alignmentwith the adjacent surface of the piling on which-therdeviceis to be mounted; and means intermediate the ends of the body portion for receiving and confining against slippage, a member adapted to encircle said upright member and said body portionpfor holding the device in operative position-.on the upright member.

'7. A jack supporting device embodying therein a substantially :upright body portion, means on said body-portion and extending laterallybeyond surfaces thereof andiproviding a support for engagement by: a part of a lifting jack, means on said body portion and: spaced longitudinally from the first mentioned means and extending laterally beyond' said aopposed'facespboth of said means being-formed for engagement with longitudinally spaced face portions of. a pile, laterally to both sides of ,said 'body portion, and means carried by :said'body por-tion at a point between both of I? said means for receiving and confining against slippage a memberadapted to encircle said pile and saidbody portion for attaching the devicein operative position-on the pile.

8. A jack supporting device embodying therein arsubstantially upright body portion of a depth fromthe inner to-the outer edge greater than the thickness thereof between-opposite side faces thereoflmeanson saidbody portion and extending" laterallyvbeyond said'side faces thereof and providing a support for engagement by a partof a lifting jack, means on said body and spaced longitudinally fromsaid first mentioned means and extending: laterally beyond said side faces, both of said means being formed with surfaces for engagementwith longitudinally spaced face portions of a pile, thecentral portion of said last mentioned surfaces coinciding with the inner surface of said body portion, and means associated with the o'uter edge of saidbody portion and formedto receive and 'confine'against slippage a member adapted to encircle said pile and said body portion for attaching the device in operative position on the pile.

.- LEWIS FJCOOPER.

REFERENCES CITED The following .references are .of recordin the file of this patentz 

